"Through carefully leveled text and powerful images, explores levers, a useful simple machine"--
Loading...
Details
ISBN:9781781213988 (hc)
Physical Description:24 pages : color illustrations ; 21 cm.
Publisher:Tucson, AZ :Brown Bear Books,c2018.
Bibliography, etc. Note:
Includes bibliographical references and index.
Formatted Contents Note:
What is a lever? -- What are machines? -- Levers and forces -- Classes of levers -- Levers in the past -- Types of levers -- Everyday levers -- Compound machines -- Spot the lever! -- Try it!